Curtain roller and bracket



` F. H. HART.

CURTAIN ROLLER AND BRACKET.

APPLICATION F |LED 1AN.|5|1920 v Patented May 17 m I l I I I I I I l I l n I UNITED STA FRANKLIN H. HART,

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OF NEW' HAVEN, CONNECTICUT, ASSIGNOR ATO C. COWIiES'n r o FFic E.

COMPANY, A CORPORATION OF CONNECTICUT. Y

CURTAIN ROLLER AND BRACKET.-

Specification of Letters Patent. vPafljengd 313,351?, 192.1;

Application kfiled January 15, 1920. Serial N0. 351,606'.

v manner. Y

llithv these -and other objects in view I' have devised rthe novel curtain roller and bracket which I will now describe and hereinafter claim. e v

In the accompanying drawing forming a part of this specification, f v

Figure 1 is affront elevationl of the novel curtain roller and bracket, a part of the roller being broken away;

Fig. 2 an enlarged sectional view of the part of the roller at the left in Fig. 1; Fig. 3 an enlarged sectional view of the part of the roller at the right in Fig. 1;

Fig. 4 a section taken on line A-A of Fig. 2; v

Fig. 5 a perspective -view of the ratchet wheel; Y

Fig. 6 a perspective view of the pawl, and

Fig. 7 is a section on line 7-7 of Fig. 1.

10 and 1l are brackets supporting the usual round and fiat ends of the shaft 12 of the curtain or shade roller. Bracket 10 for the flat end is provided with a coil spring 10a having at its outer end a ball 1()b which yieldingly presses against one side of the flat end of the shaft, as clearly shown in Fig. 7, to prevent rattling. The Vroller is revoluble on the sha-ft and comprises a tube 13 having a cap 14 sweated to'one of its ends, and a shaped disk 15 sweated to its opposite end. The shaft and tube carry anti-rattling springs 13a'which have their central portions sweated to the tube and their ends encircling the shaft, as shown more clearly in Figs. 2y and 3, and on the shaftis the usual coil spring. Thev shaft has near its flat end a boss and`a washer to insure theposition of the shaped disk. The shaped disk has a tubular portion 16 closely tting the shaft and rotating thereon, and an embossed portion 17 holding one end of l parent.

the coil spring. The other end ofthe coil. spring is attached to the shaft'. The shapedI disk extends beyond the circumference' of" the tube 13, as indicated at 18, and said `eX- tending portion has lugs 19 struck up theretosaid extending'portion as shown at 22. A flat vdisk 23 on said shaft bears against said shaped disk adjacent its connection with tube 13, and between said flat disk and cap 2Q isa ratchet wheel 24lhaving notches 25 in its outer periphery in which the struck up lugs are seated, thus holding thefratchet wheel to turn with the shaped disk and the curtain carrying tube. On the'inner periphery of the ratchet wheel are shoulders 26, dwells, 27, and cam surfaces 28. On the fiat end of the shaft.' and within the ratchet' wheel is arranged al pawl 29 havingshoul from. Acap 20- having a wall 21 restingY against each of the struck up lugs isy fitted.

ders 30A. An elongated hole 31 in thejpawlJ i' allows it vto sli-de up and down on saidliat" end. The pawl is provided with two shoulders so that the roller may be applied to the brackets either side up.

The operation of the device will be ap- The curtain may be drawn down against the action of the coil spring. The pawl will ride out of each dwell and up each cam surfacein succession. At the end of the downward movement of the curtain, its motion is stopped and the coil spring is allowed to slowly turn the ratchet wheel in the opposite direction until the shoulder on the pawl rests in a dwell and against a shoulder on the ratchet wheel. To elevate the curtain a slight downward jerk is given it, and thecoil spring is then given free action. The slight downward jerk rides the pawl out of its dwell. and up the adjacent cani surface, and the free action of the coil spring turns the ratchet wheel rapidly. The shoulder on the pawl, not having time to seat itself by gravity in a dwell and against a shoulder on the ratchet wheel, rides downl curtain. The

1. A curtain roller comprising a pawl having shoulders, a ratchet wheel, a shaped .disk by which said ratchet wheel is carried,

and a flat disk and a cap positioned on opposite sides of said ratchet wheel, and said pawl arranged between said Hat disk and cap, whereby said ratchet wheel and pawl are accurately alined so that they will positively engage each other. Y

2. A curtain roller comprising a shaft and a tube rotatably carried thereon, a pawl carried by said shaft, a shaped disk carried by said tube and itself carrying a ratchet wheel, a fiat disk arranged within the shapeddisk and positioned at one side of the ratchet w1ieel,'and a cap arranged on the other side of the ratchet wheel, and said pawl positioned lbetween-said flat disk and said ca and within said ratchet wheel.

3. A curtain roller consisting of a shaft, a tube rotatably mounted thereon, and antirattling springswhich are attached to the tube and lwhose outer ends encircle the shaft.

4. A curtain roller and bracket, consisting of a roller comprising a shaft and tube, antirattling springs attached to said tube and encircling said shaft, a pawl carried by said shaft and a ratchet wheel carried by said detachably secured to said member within the casing, and a pawl carried by said shaft within said annulus and retained therein by the casing. v

6.-'Ay curtain roller comprising a-vshaft,'a tube rotatably carried thereon, a disk attached to said tube and journaled-on said shaft, lugs on said disk, a casing carried by said disk over said lugs, av ratchet wheell within the casing and having recessesengaged with said lugs, vand a pawl carried by the shaft within said ratchet wheel.

7. In a curtain roller, a ratchet Vwheel having internal cam surfaces, dwells and shoulders, a pawl having shoulders for engagement with said cam surfaces, dwells and shoulders, and disposed within said ratchet'.

wheel, and meansl for accurately alining said pawl and ratchet wheel.

In testimony whereof I affix m signature.

FRANKLIN HART. 

